Computer.hdl

// This file is part of www.nand2tetris.org
// and the book "The Elements of Computing Systems",
// by Nisan and Schocken, MIT Press.
// File name: projects/5/Computer.hdl
/**
 * The Hack computer, consisting of CPU, ROM and RAM.
 * When reset = 0, the program stored in the ROM executes.
 * When reset = 1, the program's execution restarts. 
 * Thus, to start running the currently loaded program,
 * set reset to 1, and then set it to 0. 
 * From this point onwards, the user is at the mercy of the software.
 * Depending on the program's code, and whether the code is correct,
 * the screen may show some output, the user may be expected to enter
 * some input using the keyboard, or the program may do some procerssing. 
 */
CHIP Computer {

    IN reset;

    PARTS:
    //// Replace this comment with your code.
    ROM32K(address=pcout,out=instruction);
    CPU(inM=memout,instruction=instruction,reset=reset,outM=outm,writeM=loadm,addressM=addr,pc=pcout);
    Memory(in=outm,load=loadm,address=addr,out=memout);
}